Printing pad



PRINTING PAD Filed June 23, 1934 Patented Feb. 18, 1936 anni osleE PRINTING PAD Bernard Dwofsky, New York, N. Y.

Application .lune 28, 1934, Serial'No. 732,766 4 claims. (ci. en -54.5) Y

This invention relates to printing pads, and has for its object to provide a pad which will always maintain the inking surface in good condition to enable the rubber stamps to be applied 5 thereto to' be moistened with the ink.

More particularly, the object of the invention is to provide an automatic cooperation between the pressure of the rubber stamp applied to the inking surface and the supply of ink or the like to that surface. For this purpose, my invention consists of a casing, an inking surface arranged on the upper part of the casing, and automatically compressible means supplying the inking surface with ink. 15 The invention consists further in a casing in which there is arranged a'flexible reservoir having openings disposed toward the inking surface, and a spring means pressing the flexible reservoir towards the said openings, whereby on the pressure applied to the inking surface, the reservoir is compressed and supplies the inking surface with the necessary ink.

The invention will be more fully described hereinafter and the embodiment thereof shown in the drawing, and the invention will be finally pointed out in the claims.

In the accompanying drawing,

Figure 1 is a plan view partly in section of the improvements in the inking pad forming this nvention.

Figure 2 is a section taken on line 2--2 of Figure l; and

Figure 3 is a similar section, but with the reservoir almost completely collapsed showing the 30 contents of the reservoir substantially used up.

Similar characters of reference indicate corresponding parts throughout the various views.

Referring to the drawing, `and more particularly to Figures 1 and 2, a casing I0 of metallic character and substantially of rectangular shape, although any other shape may be utilized, is provided with a cover II, hinged at I2, as is well known.

Within the. casing I0 is an interior metallic container I3 which has an angular portion I4 arranged horizontally at its upper end, and has connected therewith at its lower end a plate I5. Exterior to the member I3, and within the casing Ill, is a material suitable for forming a pad, as cloth or the like, indicated at I6, and this extends over the entire top surface of the device, and has its free ends Il disposed between the bottom of the casing lil and the plate I5, a clamp therebetween. Below the top surface of the pad material IG, are arranged a suitable number of pieces of material, as felt or the like, such as are well known in the use of forming inking pads of this character, and these layers are indicated at I9. Disposed below these layers of pad material I9, and blotters I9a is a metallic plate 2li having a large number of small openings 2I therein, and the end portions 22 of this plate rest upon bent-over portions 24 of a reservoir 25, formed. of rubber or other suitable yielding material. The reservoir 25 has a rectangular shape and cross section as shown in Fig. 2, and has a width substantially equal to the width of the casing, and a length substantially equal to the length o'f the casing. This reservoir is filled with a paste consisting of ink ingredients, and some suitable carrier, and this material Within the reservoir 25 is capable of exuding out of the openings 2|, and serves to wet the pad layers I9 and the inking surface I6.

Below the ilexible reservoir 25 is placed a stiff When a rubber stamp such as is well known is 'n applied to the inking surface I6 with a suitable pressure to ink the surface of the rubber stamp, the inking surface I6 with its pads I9 are pressed downwardly. By such a pressure, the perforated platek 20 moves downwardly to a certain extent and thereby the inking material within the reservoir 25 passes out of the openings 2| and into the felt I9 on the inking surface I5. This is repeated, and in order to make up for the amount of material which passes out of these openings 2|, the action of the spring 28 serves to constantly press the bottom of the reservoir 25 upwardly, whereby a constant resistance is supplied to any pressure of the rubber stamp applied to the inking surface.

My invention has a special advantage that it always supplies a wet inking surface to the rubber stamp to be applied thereto, and one or two thrusts of the rubber stamp upon the inking surface I6 serve to wet it and place it in good condition for further use. The embodiment described may be made in any shape. The container can be either metal or of other suitable any other suitable yieldable material. The invention may be very simply manufactured and assembled and made at a relatively small price, and serves to provide an inking pad which has a relatively long life.

Upon the contents of the reservoir being used up, a new reservoir can be supplied or the flexible reservoir can be refilled.

I have described my invention as embodied in a certain form, but changes may be made therein without departing from the spirit of my invention as defined by the accompanying claims.

I claim:-

1. An inking pad comprising a casing, an inking surface thereon, an ink paste in the casing, and yieldable means supplying the inking surface with ink.

2. An inking pad comprising a casing, an inking surface thereon, a perforated plate, a flexible reservoir having an open side communicating with the perforations of the plate, and spring means pressing the bottom of the reservoir towards said perforated plate.

3. An inking pad comprising a casing, an inking surface thereon, a perforated plate, a yielding plate below the inking surface, pad material interposed between the inking surface ad the perforated plate, a flexible ink-containing reservoir having an open side communicating with the perforations of said plate, a plate on the closed side of the reservoir, and a spring disposed between said plate and the bottom of the casing, said spring exerting a pressure upon the flexible reservoir, whereby upon pressure being applied to the inking surface, the contents of the flexible reservoir are forced against they inking surface.

4. An inking pad comprising in combination, a casing, an inking surface thereon, a perforated plate, a flexible reservoir having an open side communicating with the perforations of the plate, an ink paste in the reservoir, and spring means pressing the bottom of the reservoir towards said perforated plate.

BERNARD DWOFSKY. 

